Apparatus for sample separation and collection

1. A centrifuge device, comprising:

a housing having a first port and a vent opening, wherein the housing is configured to rotate about an axis passing through a center of the housing;

a chamber defined by the housing and a cover, wherein the chamber is coupled to the first port, wherein a first portion of the chamber has a width that tapers between a first width at a first position and a second width at a second position within the chamber, the first width being greater than the second width;

a channel coupled to the second position of the chamber and arranged such that a path exists for gas to travel from the channel to the vent opening; and

the cover having a second port and configured to provide a wall to seal the chamber.

2. The centrifuge device of claim 1 , further comprising a second chamber coupled between the channel and the vent opening.

3. The centrifuge device of claim 1 , wherein the second port has a diameter between 100 and 500 micrometers.

4. The centrifuge device of claim 1 , wherein the second port has a diameter between 150 and 350 micrometers.

5. The centrifuge device of claim 1 , wherein the cover includes a coupling structure configured to couple the chamber with an extraction device.

6. The centrifuge device of claim 1 , wherein the chamber contains a fluid volume of about 250 microliters.

7. The centrifuge device of claim 1 , wherein the housing has a cylindrical shape.

8. The centrifuge device of claim 7 , wherein a diameter of the cylindrical housing is less than 20 mm.

9. The centrifuge device of claim 7 , wherein the first portion of the chamber extends along a circumference of the housing, and a second portion of the chamber extends radially from the axis passing through the center of the housing.

10. The centrifuge device of claim 9 , wherein the second port is positioned substantially above the second portion of the chamber.

11. The centrifuge device of claim 9 , wherein the second portion of the chamber has a hydraulic diameter less than 5 millimeters.

12. The centrifuge device of claim 1 , wherein the housing includes a hinged portion, wherein the hinged portion is configured to swing open to expose the first port.

13. The centrifuge device of claim 12 , wherein the hinged portion includes a raised structure configured to seal the first port when the hinged portion is closed.

14. The centrifuge device of claim 1 , further comprising a sample indicator configured to indicate when the chamber has been filled to a maximum level.

15. The centrifuge device of claim 1 , wherein a shortest distance between the channel and the axis of rotation is shorter than a distance between any point of the chamber and the axis of rotation.

16. A system comprising:

a centrifuge device, comprising:

a housing having a first port and a vent opening, wherein the housing is configured to rotate about an axis passing through a center of the housing,

a chamber defined by the housing and a cover, wherein the chamber is coupled to the first port, wherein a first portion of the chamber has a width that tapers between a first width at a first position and a second width at a second position within the chamber, the first width being greater than the second width,

a channel coupled to the second position of the chamber and arranged such that a path exists for gas to travel from the channel to the vent opening, and

the cover having a second port and configured to provide a wall to seal the chamber;

an actuator coupled to the housing and configured to rotate the housing about the axis; and

an extraction device coupled to the cover and configured to extract a sample within the chamber through the second port.